Download or read book Probabilistic Analysis of Laterally Loaded Piles Using P y Method written by Richa Bhatnagar and published by . This book was released on 2007 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reliability-based analysis of laterally loaded piles needs to be incorporated where the lateral movement of the foundation affects the operation of the structure. The 'p-y' approach is a widely used soil-pile interaction model to analyze the response of laterally loaded piles. Currently, nominal values of soil parameters are used in the 'p-y' model depending on the judgments of the designers. This judgment leads to ambiguity which can potentially be overcome by using reliability based design. Following the Load and Resistance Factor Design (LRFD) approach, resistance factors may be developed for the use in design of laterally loaded piles. Furthermore, using the 'p-y' model and Monte Carlo simulation, lateral load displacement curves can be developed for laterally loaded piles. Hyperbolic load displacement behavior of the soil-pile interface is considered for the analysis. The load displacement curves are analyzed to find the probabilistic load capacity relationships of piles. These relations are then utilized to further develop the resistance factors that can be included in LRFD applications. Finally, a parametric analysis is carried out where the soil-pile interface parameters are varied to understand their effect on the resistance factors.
Download or read book Probabilistic Analysis of Laterally Loaded Piles written by Jumpol Paiboon and published by . This book was released on 2008 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Method of Analysis of Piles Under Lateral Loading written by LC. Reese and published by . This book was released on 1986 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of piles to resist lateral loading is an important problem in soil structure interaction. Several methods, based on different theories, have been suggested for analysis of such foundations. Taking into account the nonlinear and inelastic characteristics of soils, the p-y method of analysis is thought to be the best one at the present time. A principal feature of the p-y method is the solution of a nonlinear, fourth-order differential equation by finite-difference techniques. The soil is modelled by the use of discrete mechanisms (p-y curves), which relate the soil resistance to the pile deflection at various depths below the ground surface.
Download or read book Numerical Analysis of Laterally Loaded Piles written by Lymon C. Reese and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Single Piles and Pile Groups Under Lateral Loading written by Lymon C Reese and published by CRC Press. This book was released on 2000-01-01 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guiding the professional through the complexities of lateral-load design, this book and CD-ROM combination introduces the procedures involved in piles and pile group design. This is a problem that can only be solved by accounting for the soil resistance as related to the lateral deflection of the pile. Intricate equations are derived and fully explained, enabling the designer to find the critical loads, either causing a pile to be overloaded or causing too much lateral deflection. The CD-ROM contains simplified versions of two required programs that allow the reader to check the solutions of some of the examples given in the book and to find answers to related problems.
Download or read book Analysis of Laterally Loaded Piles in Multilayered Soil Deposits written by Dipanjan Basu and published by Purdue University Press. This book was released on 2007-10-01 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report focuses on the development of a new method of analysis of laterally loaded piles embedded in a multi-layered soil deposit treated as a three-dimensional continuum. Assuming that soil behaves as a linear elastic material, the governing differential equations for the deflection of laterally loaded piles were obtained using energy principles and calculus of variations. The differential equations were solved using both the method of initial parameters and numerical techniques. Soil resistance, pile deflection, slope of the deflected pile, bending moment and shear force can be easily obtained at any depth along the entire pile length. The results of the analysis were in very good agreement with three-dimensional finite element analysis results. The analysis was further extended to account for soil nonlinearity. A few simple constitutive relationships that allow for modulus degradation with increasing strain were incorporated into the analysis. The interaction of piles in groups was also studied.
Download or read book Laterally Loaded Piles and Computer Program COM624G written by Lymon C. Reese and published by . This book was released on 1984 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the soil immediately below the base of a structure will not provide adequate bearing capacity, piles can be used to transfer load from the structure to soil strata which can support the applied load. This report deals with analysis of the lateral interaction of pile shaft and soil. Examples of such problems encountered by the Corps of Engineers are single-pile dolphins and baffles for grade control structures. A computer program called COM624, along with documentation, was developed at the University of Texas (UT) at Austin, to analyze laterally loaded pile problems. Analysis performed by program COM624 is dependent upon soil parameters input to the program. These soil parameters take the form of curves which simulate the nonlinear interaction of the pile and the surrounding soil. The UT Report also presented criteria for developing these soil response curves in various types of soils. This report consolidates the information available on laterally loaded pile analysis and provides supplementary data on Program COM624 (redesignated as COM624G). It describes modifications made in the input procedures and the addition of graphics options.
Download or read book P y Curve Data for Laterally Loaded Piles in Shale and Sandstone written by Jeffrey Frantzen and published by . This book was released on 1987 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of P y Curves for Analysis of Laterally Loaded Piles in Western Washington written by Steven Lawrence Kramer and published by . This book was released on 1988 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Analysis for Laterally Loaded Piles written by Kevin J. Bentley and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simplified method of analysis for laterally loaded piles written by Michael W. Bollinger and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of Data from Lateral Thrust Loadings on Piles written by and published by . This book was released on 1962 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The deflections and stresses in a laterally loaded foundation pile are a consequence of complex interaction among the structure, the pile, and the supporting soil. Correlations are needed to enable reliable prediction of force-deformation characteristics (p-y curves) from the results of soil tests. Data were organized in chronological form and were carefully screened for information on which to base the needed correlations. Pertinent data from instrumented pile tests were evaluated for accuracy and validity. Attempts were made to apply reasonable corrections or estimates. Final evaluation of resulting p-y curves was limited by the need for soil-test data representative of the condition of the soil. Lateral-plate-bearing tests produce results which appear to be reasonably valid. (Author).
Download or read book Nonlinear P y Analysis of Laterally Loaded Piles written by Wei Hing Lau and published by . This book was released on 2003 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Analysis for Laterally Loaded Piles written by Kevin J. Bentley and published by . This book was released on 1999 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior of Piles and Pile Groups Under Lateral Load written by Lymon C. Reese and published by . This book was released on 1986 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of P y Curves by Direct Use of Cone Penetration Test CPT Data written by SHAWN SHAHRIAR ARIANNIA and published by . This book was released on 2015 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current best practice in geotechnical engineering in determining lateral capacity of piles is to replace the soil reaction with a series of independent springs. Basically, the model uses beam theory to represent the pile and uncoupled, non-linear load transfer functions, called p-y curves to represent the soil. Most of the existing methods for determining p-y curves are highly empirical, based on a limited number of cases of laterally loaded piles, which were instrumented, enabling to measure the pile deflection in discrete depth intervals subject to different lateral load (i.e. Matlock 1970, Reese 1975). In essence, these methods have their own limitations, and are mainly applicable for the conditions similar to the tested conditions. Although later, more detailed investigations by different people addressed some of the problems, still the basis of the existing design programs such as LPILE, or procedures introduced in applicable codes such as API (American Petroleum Institute), is the same original recommendations made by Matlock and Reese during seventies. In recent era, demand in employment of in-situ direct-pushed based methods using multi-measurement in-situ devices, such as the seismic cone penetration test with pore water measurement (SCPTu) and Seismic Flat Dilatometer Test (SDMT) is significantly increased. The main objective of this research is to introduce a unified CPT-based approach for determining p-y curves and pile responses to lateral loads. The suggested approach will provide explicit and defined steps/criteria to develop p-y curves for piles subjected to lateral loads using CPT data. CPT data will be used to determine soil strength parameters. Recent developments in relating CPT data to soil basic parameters using Critical State Soil Mechanics (CSSM) framework will be implemented in the suggested model. In all current common models, pre-determination of the soil behavior and the model to be used (e.g. Matlock clay, 1970 or Reese sand, 1975), will become warranted even before commencement of the analysis. On the contrary, in the proposed model, the need for the said pre-determination of soil behavior is eliminated. As discussed in Section 2.3.5, soil behavior in the model is being classified into four broad and general groups: drained-dilative, drained- contractive, undrained-dilative and undrained-contractive The main factor driving the suggested analytical approach is Soil Behavior Type Index, Ic. In the proposed approach, the SBT index, Ic, will be used to determine the in-situ characteristics and behavior of the soil. Based on the value of Ic calculated from CPT data, it could be determined that the soil behaves as a sand-like or a clay-like soil, and during the shearing would behave in undrained or drained condition. The measured shear wave velocity during field test using seismic cone penetration test or other methods such as SASW (Spectral Analysis of Surface Waves) or Cross-Hole logging, may be used to determine the small strain shear modulus, G0, which corresponds to the initial stiffness of the linear part of the p-y curve. In this research, the proposed model will be verified using collected case histories of laterally loaded piles with available CPT data at the same site. The p-y curves, and pile force-head displacements determined from the model will be compared to the field-resulted p-y curves and pile head displacement measurements available from the case histories.
Download or read book Effect of Diameter on the Behavior of Laterally Loaded Piles in Weakly Cemented Sand written by Teerawut Juirnarongrit and published by . This book was released on 2002 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
